Comments

The volval remnants on the bulb are consistent with a muscarioid taxon. I suggest that the first step would be to confirm that the spores are inamyloid and that there are clamps on the basidia. These two points and the appearance of the fruiting bodies would confirm that the mushroom belongs in the muscarioid group.

If the clamps are very plentiful, that could be supportive of a determination as var. persicina…emphasis on “supportive.”

Were the specimens collected in a place where sunlight could fall directly on the caps?

It would be interesting to know if other collections of similar material have as much volval material on the bulb…or have less.

The spore data will be very interesting also…although spore data is not the greatest way to quickly segregated the muscarioid taxa in eastern North America. See